Q1. A plot which is rectangular in shape has to be tilled. If the length of
the plot is 200cm and the breadth is 125cm and the side of the square
tile is 25 cm, find the total number of tiles needed for tilling the land.
Q2. Surbhi and Suman made incomplete shapes as shown below. Help
them to complete the shapes.
a) Surbhi drew one side of the shape. Complete the shape
such that its area is 8 square cm.
b) Suman drew 2 sides of the shape. Complete the shape
such that its area is 4 square cm.
c) Whose shape has a greater perimeter?
Q3. Zain wants to put granite tiles on the kitchen slab. Each side
of the tile is 50cm. If the kitchen slab is 300 cm long and 150
cm wide, find the number of granite tiles required to cover the
slab.
Answers
no1) Given:
Length =500m
Breadth =200m
Required cost =Rs.8
Also given, to find out the cost of tiling a rectangular plot
As we know that,
area of a rectangle =l×b sq. units
=500×200mt
2
∴ area of a reactangle =100000sq.mt.
to find the cost of rectangular tiling given required cost =Rs.8
∴ cost of a tiling rectangular plot = area of rectangular × required cost
=100000×8=800000
∴ the cost of tiling a rectangular plot =Rs.800000
no3)Given each side of the tile =10 cm
one tile = (10×10)=100 cm 2 And also given the length of kitchen =220 cm. Breadth of kitchen =180 cm Area of the kitchen floor =(l×b) =(220×180)cm 2 =39,600 cm 2 Total no. of tiles needed = 10039,600 = 396 tiles